Commit from a long-standing Mercurial tree that ended up incorporating a lot of things:
* A few fixes for CPC interface changes in all the CPCs
* Attempts (but not yet finished) to fix shutdown problems in the IB CM CPC
* #1319: add CTS support (i.e., initiator guarantees to send first message; automatically activated for iWARP over the RDMA CM CPC)
* Some variable and function renamings to make this be generic (e.g., alloc_credit_frag became alloc_control_frag)
* CPCs no longer post receive buffers; they only post a single receive buffer for the CTS if they use CTS. Instead, the main BTL now posts the main sets of receive buffers.
* CPCs allocate a CTS buffer only if they're about to make a connection
* RDMA CM improvements:
* Use threaded mode openib fd monitoring to wait for for RDMA CM events
* Synchronize endpoint finalization and disconnection between main thread and service thread to avoid/fix some race conditions
* Converted several structs to be OBJs so that we can use reference counting to know when to invoke destructors
* Make some new OBJ's have opal_list_item_t's as their base, thereby eliminating the need for the local list_item_t type
* Renamed many variables to be internally consistent
* Centralize the decision in an inline function as to whether this process or the remote process is supposed to be the initiator
* Add oodles of OPAL_OUTPUT statements for debugging (hard-wired to output stream -1; to be activated by developers if they want/need them)
* Use rdma_create_qp() instead of ibv_create_qp()
* openib fd monitoring improvements:
* Renamed a bunch of functions and variables to be a little more obvious as to their true function
* Use pipes to communicate between main thread and service thread
* Add ability for main thread to invoke a function back on the service thread
* Ensure to set initiator_depth and responder_resources properly, but putting max_qp_rd_ataom and ma_qp_init_rd_atom in the modex (see rdma_connect(3))
* Ensure to set the source IP address in rdma_resolve() to ensure that we select the correct OpenFabrics source port
* Make new MCA param: openib_btl_connect_rdmacm_resolve_timeout
* Other improvements:
* btl_openib_device_type MCA param: can be "iw" or "ib" or "all" (or "infiniband" or "iwarp")
* Somewhat improved error handling
* Bunches of spelling fixes in comments, VERBOSE, and OUTPUT statements
* Oodles of little coding style fixes
* Changed shutdown ordering of btl; the device is now an OBJ with ref counting for destruction
* Added some more show_help error messages
* Change configury to only build IBCM / RDMACM if we have threads (because we need a progress thread)
This commit was SVN r19686.
The following Trac tickets were found above:
Ticket 1210 --> https://svn.open-mpi.org/trac/ompi/ticket/1210
"!OpenFabrics" / neutral (i.e., refer to IB and/or iWARP).
* Mostly just type, variable/field, and funcion name changes, such as
s/hca/device/g, etc.
* Changed the INI file for the hardware-specific parameters to be
mca-btl-openib-device-params.ini.
* Updated a lot of help messages in the help-*.txt files, not just to
update it to be !OpenFabrics/neutral language, but also for some
consistency of tone, indenting, etc.
* Deprecated a bunch of MCA params in favor of language-neutral new
ones:
* btl_openib_warn_no_hca_params_found (s/hca/device/)
* btl_openib_hca_param_files
* btl_openib_ib_cq_size (s/_ib_/_of_/)
* btl_openib_ib_max_inline_data
* btl_openib_ib_psn
* btl_openib_ib_mtu
* btl_openib_ib_pkey_ix
* btl_openib_ib_pkey_val
This commit was SVN r18985.
The following Trac tickets were found above:
Ticket 1295 --> https://svn.open-mpi.org/trac/ompi/ticket/1295
